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Umnica [9.8K]
3 years ago
14

Birds have hollow bones. explain how this is adaptive.

Biology
1 answer:
Nutka1998 [239]3 years ago
4 0
Birds have hollow bones due to the fact thay need to be as light as possible for their wings to generate enough lift for them to fly
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Compare the leaf hairs on the upper leaf surface with the leaf hairs on the lower leaf surface.
Anestetic [448]

The main difference between upper

epidermis and lower epidermis is

that upper epidermis possesses a cuticle layer whereas lower

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5 0
3 years ago
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In which oceanic zone do clams and crabs survive by burrowing in the sand?
Keith_Richards [23]

Answer:

Mesopelagic zone

Explanation:

The Mesopelagic zone, also referred to as the Twilight zone, is the second oceanic zone from the top, lying just bellow the Epipelagic zone. It is occupying the waters at depths between 200 meters and 1,000 meters. The sunlight is only managing to reach the top few meters of this zone, while the rest is not receiving any sunlight, thus this zone is not supporting the plant species because they need sunlight for the process of photosynthesis. There are lot of animal species that live in this zone though, and they are ll very well adapted for it, often having hard shells or heavily scaled bodies, larger lungs and heart, and very well developed gills. Some of the animals that live in here are the crabs and the clams. They have developed all the needed characteristics to live in this zone. Because they are prey to lot of larger animals, both the crabs and the clams have started to use the soft sediments at the bottom as cover, digging themselves below it, and mostly managing to evade trouble and end up as food for the other species.

8 0
3 years ago
How are sex-linked traits inherited?
blsea [12.9K]

Answer;

Alleles are passed from the parents’ sex chromosomes to the sex chromosomes in the offspring.


Explanation;

-Sex linked traits are traits that are carried by the sex chromosomes and inherited together.

-Gene exists in alternative forms called alleles and each allele for a trait is inherited from each parent.

-Sex traits, like the other traits, are passed from parents to off spring through the process of sexual reproduction.

3 0
3 years ago
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Why are emotional memories retained better than memories of humdrum experiences? Select an answer and submit. For keyboard navig
olya-2409 [2.1K]

Answer:

The correct answer is : option A. emotional arousal in the amygdala activates memory consolidation in the hippocampus.

Explanation:

Hippocampus is the part of the brain known for the consolidation of the memories to short time to long term memories based on their emotional relevance.

Amygdala is the part of the brain that is responsible for emotional arousal or forming emotion which is later activates the hippocampus to consolidate this memory. Memory with the emotional aspects retained for long term than boring or humdrum experiences due to the reason mentioned above.

5 0
3 years ago
How is the positioning of the frog's eye an adaptive advantage for the frog?
grandymaker [24]
It allows it to hide under but still be able to see above it to catch flies
6 0
3 years ago
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