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SCORPION-xisa [38]
3 years ago
8

How does starfish obtain and distribute oxygen and nutrients

Biology
1 answer:
vovangra [49]3 years ago
6 0

Starfish have a unique form of digestion in the animal kingdom and a water-vascular system that allows the animal to breathe.

All your answers should be in this article: 
http://animals.mom.me/feeding-respiration-starfish-6596.html
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The pea aphid, a type of insect, contains light-capturing pigments in its exoskeleton. Scientists hypothesize that pea aphids ga
kondor19780726 [428]

Answer:Based on the information given we can not say pea aphid as an autotroph. Because pea aphid ability to produce ATP in the presence of sun is due to the light-capturing pigment that it gains from the genes transferred from fungi.

As pea aphid do not have any chloroplast and it cannot fix carbon so it is not a true autotroph. We can say it false autotroph because it can produce ATP in the presence of sunlight and can show increased production of ATP at the higher level of pigment.

Explanation: Sub to rockingmycoolstyle15 on yt

6 0
2 years ago
Match the job role to the description of the work done by the professional.
loris [4]

Answer:A) Aquarist- Tony spends his time at work preparing feed and cleaning the tanks of the marine creatures on display. B) Marine educationist-Clayton works in a firm advising oil exploration companies about the impact of their activities.

C) Environmental consultant-Glenda runs a campaign to stop sand mining in the estuary that lies near her town.

D) Environmental lobbyist-Hazel works in a tour operating company interacting with and answering questions from tourists about the coral reefs in the Florida Keys.

Explanation:

4 0
2 years ago
How do scientists choose the kingdom in which a eukaryote belongs in?
Alenkasestr [34]
<span> Eukaryotic cells are a lot more complex. They have a nucleus in a nuclear membrane, where DNA or other genetic information is stored, as well as lots of organelles that serve different functions.</span>
5 0
3 years ago
Read 2 more answers
Please hurry!!
antoniya [11.8K]

Answer:

Living organisms are adapted to their environment. This means that the way they look, the way they behave, how they are built, or their way of life makes them suited to survive and reproduce in their habitats. For example, giraffes have very long necks so that they can eat tall vegetation, which other animals cannot reach. The eyes of cats are like slits. That makes it possible for the cat's eyes to adjust to both bright light, when the slits are narrow, and to very dim light, when the slits are wide open.

Behavior is also an important adaptation. Animals inherit many kinds of adaptive behavior. In southern Africa there are small animals called meerkats, which live in large colonies. The meerkats take turns standing on their hind legs, looking up at the sky to spot birds of prey. Meanwhile, the meerkats in the rest of the colony go about their lives. You can probably think of many other features of body or behavior that help animals to lead a successful life.

In biology, an ecological niche refers to the overall role of a species in its environment. Most environments have many niches. If a niche is "empty" (no organisms are occupying it), new species are likely to evolve to occupy it. This happens by the process of natural selection.

Many fossils of different kinds of horses have been discovered, and paleontologists think that the earliest ancestor of the modern horse lived in North America more than 50 million years ago. This animal was a small padded-foot forest animal about the size of a dog. If you saw one next to a modern horse, you might not even think the two were related! As time passed, the climate of North America became drier, and the vast forests started to shrink. Grasses were evolving, and the amount grassland was increasing. Horses adapted to fill this new grassland niche. They grew taller, and their legs and feet became better adapted to sprinting in the open grasslands. Their eyes also adapted to be further back on their heads to help them to see more of the area around them. Each of these adaptations helped the evolving grassland horses to avoid predators. Their teeth also changed to be better adapted to grinding tough grassland vegetation.

Explanation:

6 0
3 years ago
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What scientific evidence would show that two species of birds are closely related? Question options:
DaniilM [7]
The two bird species have similar DNA sequences
7 0
3 years ago
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