A scientist observes fossil evidence that leads her to believe that certain organisms have a common ancestor.

Which observation most likely led to this conclusion?

She observed older fossils that contained many of the same minerals as the newer ones.

She found skeletons of modern organisms in the same area as fossilized organisms.

She observed a fossil with skeletal structures similar to certain modern organisms.

She found several fossils in rock layers directly below other fossils of similar size.

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Explanation:

A scientist observes fossil evidence that leads her to believe that certain organisms have a common ancestor. Which observation most likely led to this conclusion? She observed older fossils that contained many of the same minerals as the newer ones.

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Which cell organelle converts high-energy molecules into products that can be used to power life functions?

A: Mitochondrion
B: endoplasmic reticulum
C: Cell membrane
D: Nucleus
E: Ribosome

Which best describes photosynthesis *

The process plants use to convert sunlight into energy
The process animals use to convert food into energy
The process animals use to convert sunlight into food
The process plants use to convert sunlight into food

An archer releases an arrow toward a target. The arrow travels 170 meters in 2 seconds. What is the speed of the arrow?

distinguish between multiple alleles and polygenic inheritance

23. To which of the following groups do flowering plants that produce fruit belong?

Convection currents in the atmosphere influence many weather patterns. What property of the air has the most influence on convection currents?
A.
the direction of the wind

B.
the velocity of the wind

C.
the temperature of the air

D.
the mass of the air

Which of the following are abiotic factors of a coral reef community?
A. crabs and sunlight
B. water, sunlight and amount of oxygen in water
C. water and fish
D. fish, sharks and crabs

Place the following terms in order to demonstrate the path that a nerve impulse makes through a neuron,

axon tips, dendrite, synapse, axon, dendrite or body cell, cell body,

The following diagram shows the branching tree for four kingdoms and some of their shared derived characteristics.

What shared characteristic can be written at point X? Use complete sentences to explain your answer.

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Organisms all perform activities that allow them to survive. Which of these activities is a way that organisms get the energy they need to grow, breathe, and move?
exercise
consume other organisms
generate body heat
flee from predators

.Bacteria
.plant and animal cells.
Describe at least 3 differences between the bacteria and the other to cells (plant and animal cells.)

Multicellular organisms are composed of cells that vary in appearance.



What is the most likely reason cells in organisms have different shapes?

Choose an organism. Use credible websites to research the classification of that organism and the characteristics it shares with other organisms in each category. Then note the organism you selected and fill in the table with the information you gathered.
Name of Organism: dog

Category Name Shared Characteristics
Kingdom animalia multicellular, eukaryotic
Phylum Chordate
Class mammal
Order carnivora
Family canidae
Genus canis
Species C. lupus
pure confusion :( please help

1. What is aerobic respiration?
Answer choice 1) The process that breaks down glucose in the absence of oxygen to release energy

Answer choice 2) the process that breaks down glucose in the presence of oxygen to release energy

Please help
Begin by selecting a freshwater or marine aquatic ecosystem as a model for your food web be specific choose a specific like or if you choose an ocean ecosystem identify its geographical area and Depth

Which of these are vertebrate chordates? (Select all that apply.)

flatworm
humans
mockingbird
fish

A rectangular prism has a volume of 810 cubic meters. it has a length of 10 meters and a w

identify and describe two technologies that have changed the way humans influence the inheritance of desired traits in plants and/or animals.

The place where an organism
lives is its habitat. Organisms
interact with both biotic, or living,
parts of their habitat, as well as
abiotic, or nonliving, parts.
1. What biotic factors can you
identify? Write at least three
examples here.

what is the main ingredient in soil?
a. weathered rock
b. air
c. water
d. organic matter

What process allows reproductive cells to end up with one copy of the parent's genetic code?

A.cytokinesis

B.meiosis

C.mitosis

D.recombination

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PLEASE HELP ASAPP

The quality of the soil for many plants depends on the soil pH because pH determines the nutrients in the soil useful to plants. Most plants grow best in a slightly acidic pH range of _______.

A. 2 to 8

B. 8 to 10

C. 5 to 7

D. 6 to 9

A basic rule for the law of COMPLETE DOMINANCE is....

A. If I have a capital letter, I will show that trait since the capital letter will OVERPOWER the lower case letter

B. If I have a capital letter, the recessive trait can still be displayed.

1. What type of population study would be useful for determining the number of chipmunks in a 500 acre field.
A. sampling
B. census

2. What type of population is best suited for taking a census?
A. small population in a large area
B. small population in a small area
C. large population in a small area
D. large population in a large area

3. What would cause an increase in the population?
A. An increase in predation rate
B. A movement of animals into the area.
C. A movement of animals out of the area
D. A death of animals

4. How many ways are there that populations can change?
A. 8
B. 4
C. 6
D. 2

Which amount of fertilizer do plants grow best in according to this experiment?

A- zero pellets
B- 25 pellets
C- 8 pellets
D- 3 pellets

Research and share examples of how young environmentalists have made a difference.

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Which process is demonstrated by the image below

Darwin's finches are often used to illustrate evolution. Evaluate the finch beaks shown in the picture. Choose ALL of the statements that correctly explain the evolution of finch beaks.
A) As the environment changed, the finches grew longer beaks to allow them to get food out of fruits.

B) Finches with longer beaks settled on the same island with smaller beaked birds. Over time, they bred, producing medium beaked birds that became more common in the population.

C) There are finches with different types of beaks in the population. During a drought, those with shorter beaks are not able to find sufficient food and die, leaving them unable to reproduce and pass the trait on to offspring.

D) A random mutation introduced the shorter, thicker beak into the population. However, those with thinner, longer beaks were better able to get nectar from the island's flowers. Those birds with the shorter, thicker beaks were unable to get enough food to survive.

E) A disease swept through the island killing many of the insects that were common on the island, leaving the birds who ate insects from the ground starving. The finches that had thicker beaks and could get food from tree bark were able to continue to survive and reproduce, increasing this trait in the population.

Please help, it's about space and it's for my science class!