7. Why do scientists think that photosynthetic prokaryotes were probably not the first life forms on Earth?

Answers

Answer 1

Answer: Microbes were the first inhabitants of Earth. They are single-celled organisms, like bacteria, fungi, and protozoa. Microbes are still found just about everywhere today, thriving in boiling hot thermal springs
Hope this Helps :D

Answer 2

Answer: because photosynthesis is Four stage sequence of how life first developed on Earth way in the being of time small organic molecules

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The plentiful nature of resources in the tropical rainforest reduces competition for them.

Answers

That statement is false

The plants still have to undergo a fierce competition in order to obtain sunlight. The taller trees will obtain more sunlight while overshadowing the smaller one.

Meanwhile , even though there are a lot of food resources in the rain forest, it also have many animals that compete for the same food.

Answer: The plentiful nature of resources in the tropical rain forest reduces competition for them is FALSE

The plants still have to go through an aggressive competition in order to obtain sunlight. The trees which have a high altitudes will get more sunlight whereas overshadowing the ones with smaller altitudes . There is a lot of food that can be obtained in the forest but at the same time many animals are present in the forest too as a result even for the food the animals would have to compete.

The pituitary gland controls the thyroid gland.
True
False

Answers

While the pituitary gland is the master gand of the endocrine system, it controls the thyroid gland.

The pituitary gland can be found in the base of the brain, inferior to the hypothalamus. It is considered the gland that oversees the other endocrine organ glands. It regulates, control and manages every major gland in the body.

Answer:

Simple answer true.

I hope it helps.

Explanation:

Where do most producers get their energy from?a. from the water
b. from the sun
c. from other organisms
d. from the air

Answers

Answer: b. from the sun

Explanation:

Most of the producers are the plants and other autotrophic organisms that obtain their energy from the light energy of sun. These organisms use the light energy from sun to convert this energy into chemical energy of food by the process of photosynthesis. In the absence of sunlight energy photosynthesis will not occur. The ingredients like water and carbon dioxide are used to produce oxygen and carbohydrates in the presence of sunlight.

The answer is b, because all energy comes from the sun which then goes to the autotrophs( producers) who make there food, and then the omnivores eat the autotrophs and the carnivores eat the omnivores or anything that consists of meat.

which statement best describes why genetic variation is beneficial to populations of organisms A. Individuals look different from one another. B . Only one parent is needed to produce offspring. C. Populations of the organism increases more rapidly. D. Species can better survive environmental changes.

Answers

Answer:

Explanation:

Its D, species began having more beneficial adaptions to their environment causing them to live longer.

Answer:

It's D. Species can better survive environmental changes.

Which scientist studies biotic factors?

Answers

The scientist that studies biotic factors would be a biologist. The reason for this is the fact that biologists are scientists who study all living things which are also all the biotic factors. Although it is also true that other scientists could be studying biotic factors as well.

In the alternation of generations life cycle the diploid zygote grows into a sporophyte plant through a process calleda. reproduction.
b. fertilization.
c. meiosis.
d. mitosis.

Answers

In the alternation of generations life cycle the diploid zygote grows into a sporophyte plant through a process called D. Mitosis.

Other Questions

How is the process of fertilization in animals like the process that takes place in plants? A. A sperm cell and an egg cell combine to form an embryo. B. Sperm is encased in a grain of pollen to travel to an egg. C. Spores can become sperm that will fertilize the egg. D. Self-fertilization is possible if no partner is available.

What does vena cava transport?

The classification system developed by Linnaeus in the early 1700s divided living organisms into plant and animal kingdoms. Today, that has been expanded into five kingdoms. Which of the following inventions was most responsible for creating the need for the additional three kingdoms and why?

Could you tell me what Are Spores?