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ale4655 [162]
4 years ago
10

Fossils of a microscopic organism are found in rocks determined to be over 3.5 billion years old. Identify TWO types of evidence

that would help answer the question of whether the organism was photosynthetic.Fossils of a microscopic organism are found in rocks determined to be over 3.5 billion years old. Identify TWO types of evidence that would help answer the question of whether the organism was photosynthetic.
Biology
1 answer:
Ivan4 years ago
3 0

Answer: If it contains a chloroplast and if it contains by products of photosynthesis.

Explanation:

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If the genotypic frequencies of AA, Aa, and aa are 0.6, 0.2, and 0.2, respectively, then the frequency of allele A is _____ and
photoshop1234 [79]

Answer:

The frequency of allele A = 0.7

The frequency of allele a = 0.3

Explanation:

Assume that p = frequency of allele A ad q = the frequency of allele a

According to Hardy Weinberg equilibrium

p + q = 1  

p² + 2pq + q² = 1

During the process of submitting this answer, we experienced a technical difficulty that the answer cannot be added but to curb that effect, we've attached the screenshot of the full answer in the image below as it was typed exactly by using the text editor. We also add the answer in the comment section below.

3 0
3 years ago
Explaining of matter when it is heated known as
Stella [2.4K]

When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. ... Solids, liquids and gases all expand when heat is added.  Matter can change from one state to another when thermal energy is absorbed or released. ... heated, it absorbs thermal energy and its temperature rises. At some point, the temperature stops rising and the ice begins to change into liquid water. The change from the solid state to the liquid state is called melting.

8 0
3 years ago
Read 2 more answers
If a man with blood type A, one of whose parents had blood type O, marries a woman with blood type AB, what are the putative gen
DIA [1.3K]

Answer:

If the man has blood type A one of whose parents had blood type O then he must be having the genotype IAi and the woman with blood group AB would have genotype IAIB. So if they produce offspring than the putative genotype of the offspring would be IAIA, IAi, IAIB, and IBi.

                     IA        i

              IA   IAIA   IAi

              IB   IAIB    IBi

Therefore out of four offspring, two offspring would be having A blood group, one offspring would have AB blood group and one offspring would have B blood group.

5 0
3 years ago
Which structure is thick to protect some of the reproductive structures in flowers?
marin [14]

Answer:

C. Sepal

Explanation:

The flower of a plant is the reproductive structure of that plant where all reproductive activities of the plant takes place. However, some structures in the flower performs respective duties to aid this reproduction process. One of those structures or parts of a flower is the SEPAL

The sepal is a usually green external part of a flower that functions to protect some of the other reproductive structures in flowers e.g petals, due to its thick epidermis. Note that, the collection of sepals in a flower is called CALYX

5 0
3 years ago
Fungus is an organism not drawn in the above food chain although it has a very important role. Describe an important role of org
VLD [36.1K]

Answer:

Explanation:

Fungi and bacteria are decomposers. This means they help breakdown dead plant and animal matter.

This is kind of a baseline descripiton but i hope it helps!

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4 years ago
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