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Leviafan [203]
3 years ago
13

11. If female deer mate with male deer that have the largest antlers, we are witnessing _______ selection.

Biology
1 answer:
Kamila [148]3 years ago
3 0
D. sexual selection
D. Mutations

<span>These are all component of evolution in the promotion of biodiversity. How an organism evolves due to mutation, selection and adaptation. </span>

<span>Biodiversity depends on a species' ability to reproduce itself. If a species cannot reproduce then it will die out. This depends on the climatic conditions of the region. If there is a natural disaster for example, it will affect a species' ability to reproduce. This reduces the number of diverse species on earth. Biodiversity is the recognised variety of different types of life found on the earth. It also measures the variety of number and variety of plants, animals and other organisms found in different ecosystems.<span> </span></span>

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From the laboratory exercise, match the plant group to the plant examined. [8 pt] Miniature Parlor Palm Coleus Blue Rabbit’s Foo
melamori03 [73]

Answer:

Miniature parlor palm- Angiosperm monocot

Coleus- Angiosperm eudicot

Blue rabbit's foot fern- pterophyte

Geranium- Angiosperm eudicot

Foxtail fern- Angiosperm monocot

Tree fern- Angiosperm monocot

Boston fern- pterophyte

Spider plant- Angiosperm monocot

8 0
3 years ago
Why is it essential that the regulatory mechanisms that activate glycogen synthesis also deactivate glycogen phosphorylase?
Marta_Voda [28]

Answer:

There are two pathways occur in the same cellular compartment, and, if both are on at the same time, a futile ATP hydrolysis cycle results. Using the same mechanism to turn them on/off or off/on is highly efficient.

- "Glycogen Phosphorylase" activity can be allosterically controlled ATP and G6P allosteric inhibitors, AMP allosteric activator as well as, controlled through covalent modification, phosphorylation and via hormones.

- Reaction Catalyzed by Glycogen Synthase:

The activity of glycogen synthase is subject to the same type of covalent modification as glycogen phosphorylase, however, the response is opposite. Glycogen Synthase is activated by G6P. It is also controlled via hormones.

5 0
3 years ago
Why can't both strands of DNA be replicated at the same time?
saw5 [17]

Answer: DNA is a molecule made up of two strands, twisted around each other in a double helix shape. The two strands are complementary which have a 5 prime end and a 3 prime end. To understand this question you must first understand the steps that follow.

DNA Replication:

<u>Step one: </u>

DNA Helicase (unzips) separates the strands.

<u>Step two:</u>

DNA Primase starts the process and makes a small piece of RNA called a primer. This marks the starting point for the DNA.

<u>Step three:</u>

DNA Polymerase binds to the primer and will make the new strand of DNA. DNA Polymerase can only add DNA bases in one direction, from the 5 prime end to the 3 prime end.

  • The leading strand is made continuously.
  • The lagging strand does not run continuously because it runs in the opposite direction. Each fragment is started with an RNA primer. DNA Polymerase then adds a short row of DNA bases from the 5 prime to 3 prime direction. This results in okazaki fragments because it can only replicate in small chunks. The process is repeated.

<u>Step four:</u>

Once the new DNA is complete the enzyme exonuclease removes all the RNA primers from both strands of DNA.

<u>Step five:</u>

Another DNA Polymerase fills in the gaps that are left behind with DNA.

<u>Step six:</u>

DNA Ligase seals up the fragments in DNA, in both strands to make a continuous double strand.

<u>Final answer:</u>

DNA Replication cannot replicate at the same time due to the leading and lagging strand.

Good luck!

7 0
3 years ago
A. Which source of energy produces the most electricity worldwide?
Luba_88 [7]
A Fossil Fuel is the highest
b Nuclear goes down during 2005-2015 but solar is the lowest through it all but it seems to increase a little between 2005-2015 so I’m not sure which one but it’s between those two
8 0
3 years ago
DNA provides the blueprint for the synthesis of proteins. A _______ is a segment of DNA that codes for one particular protein.
Georgia [21]
That's Gen is a segment of DNA
8 0
4 years ago
Read 2 more answers
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