Me urgently

17 points and will make as branilest do best

here are options for last

1.
a) deserts,
b) savannahs,
c) temperate forests

2.
a) boreal forests
b) tropical forests
c)tropical grasslands

Image 1 -

So, if black and red squirrels eat the same things, red squirrels will have less food, since there'll be a new species feeding on their food sources. When this happens, both black and red squirrels will need food, and will start competing.  

Since gray squirrels feed on different stuff, these wont be affected by the invasive species, and they won't find themselves in the need of competing.

Answers:

B, C and D.

Image 2 -

In both photosynthesis and cellular respiration chemiosis is involved, since it's the movement of ions through a membrane, and if you think about it, this is something that has to occur in both processes - no differeces here.

Both processes produce ATP, but in differnt ways, of course. As we can see, no differences regarding ATP production.

In both processes, molecules are broken down into "usable parts", which means photosynthesis and celullar respiration are catabolic processes. Thus, there is no difference in this area.

Both processes create energy for it to be stored. And of course, this energy is used everntually. As we can tell, no difference here.

Now, do both processes occur at the same time? No. That isn't possible since they're are "opposites" in a certain way, so they cannot happen together. Photosynthesis occurs during the day, when sunlight is available and celullar respiration occurs at night when no photosynthesis is occurring.

B.

Image 3 -

As far as I know, only the plant moves, grows and survives only with radiant sun-energy. Also, the other organisms have other sources of energy that are not radiant.

B.

Image 4 -

The wood doesn't move, so it doesn't have kinetic energy. It isn't connected to any current or circuit, so no electric energy. Any other physical energy cannot be applied to the piece of wood. The energy the wood contains is chemical energy, and, when it's burned, it releases heat (thermal energy).

A.

Image 5.1 -

First of all, the few trees in deserts and savannahs do not shed leaves because they do not undergo harsh winters. Probably no winter (as in temperature-change). So, only trees in temerate forests can do so, and indeed, that's it.

C.

Image 5.2 -

First of all, the trees we're talking about here are pine-related trees (conifers). So, tropical grasslands don't have trees, only grass. Tropical rainforests do not have conifers, and the only option that resembles a forest formation of alomst exclusively conifers, is A, boreal forests.

A.

Hope it helped,

BioTeacher101

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.